kc3-lang/angle/src/common/utilities.h

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• Hash : f51bc795
  Author :
  Date : 2015-05-04T14:57:03
  

  Optimize Texture binding by only applying referenced textures.
  
  Update ProgramGL to track which the current values of sampler uniforms so
  that only the currently applied texture units have to be bound for the
  draw call.
  
  BUG=angleproject:882
  
  Change-Id: I280aa106172b13a5fbb31cdefba27b6691c0a0e4
  Reviewed-on: https://chromium-review.googlesource.com/264803
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/common/utilities.h

• //
  // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // utilities.h: Conversion functions and other utility routines.
  
  #ifndef COMMON_UTILITIES_H_
  #define COMMON_UTILITIES_H_
  
  #include "angle_gl.h"
  #include <string>
  #include <math.h>
  
  #include "common/mathutil.h"
  
  namespace gl
  {
  
  int VariableComponentCount(GLenum type);
  GLenum VariableComponentType(GLenum type);
  size_t VariableComponentSize(GLenum type);
  size_t VariableInternalSize(GLenum type);
  size_t VariableExternalSize(GLenum type);
  GLenum VariableBoolVectorType(GLenum type);
  int VariableRowCount(GLenum type);
  int VariableColumnCount(GLenum type);
  bool IsSamplerType(GLenum type);
  GLenum SamplerTypeToTextureType(GLenum samplerType);
  bool IsMatrixType(GLenum type);
  GLenum TransposeMatrixType(GLenum type);
  int VariableRegisterCount(GLenum type);
  int MatrixRegisterCount(GLenum type, bool isRowMajorMatrix);
  int MatrixComponentCount(GLenum type, bool isRowMajorMatrix);
  int VariableSortOrder(GLenum type);
  
  int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);
  
  static const GLenum FirstCubeMapTextureTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X;
  static const GLenum LastCubeMapTextureTarget = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
  bool IsCubeMapTextureTarget(GLenum target);
  size_t CubeMapTextureTargetToLayerIndex(GLenum target);
  GLenum LayerIndexToCubeMapTextureTarget(size_t index);
  
  // Parse the base uniform name and array index.  Returns the base name of the uniform. outSubscript is
  // set to GL_INVALID_INDEX if the provided name is not an array or the array index is invalid.
  std::string ParseUniformName(const std::string &name, size_t *outSubscript);
  
  RangeUI ComputeIndexRange(GLenum indexType, const GLvoid *indices, GLsizei count);
  
  bool IsTriangleMode(GLenum drawMode);
  
  // [OpenGL ES 3.0.2] Section 2.3.1 page 14
  // Data Conversion For State-Setting Commands
  // Floating-point values are rounded to the nearest integer, instead of truncated, as done by static_cast.
  template <typename outT> outT iround(GLfloat value) { return static_cast<outT>(value > 0.0f ? floor(value + 0.5f) : ceil(value - 0.5f)); }
  template <typename outT> outT uiround(GLfloat value) { return static_cast<outT>(value + 0.5f); }
  
  }
  
  #if !defined(ANGLE_ENABLE_WINDOWS_STORE)
  std::string getTempPath();
  void writeFile(const char* path, const void* data, size_t size);
  #endif
  
  #if defined (ANGLE_PLATFORM_WINDOWS)
  void ScheduleYield();
  #endif
  
  #endif  // COMMON_UTILITIES_H_
  

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